Philips HTS3355- 55 Service Manual

1 - 1

HTS3355/

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.

Published by KC-ET0701 Service Audio Printed in The Netherlands Subject to modification

DVD Micro Theatre

Version 1.0

TABLE OF CONTENTS

Page

Location of PC Boards ................................................1-2

Versions Variation & Package .................................... 1-2

Specifications .............................................................. 1-3

Service Aids ................................................................1-4

ESD & Safety Instruction ............................................1-5

Lead-free solding Information ....................................1-6

Repair Instructions ......................................................... 2

Disassembly Instructions & Service positions .............. 3

Block & Wiring Diagram ................................................ 4

Control Board ................................................................. 5

Main Board ..................................................................... 6

Power Board .................................................................. 7

DVD loader....................................................................8

Mechanical Exploded View & Parts...............................9

Service Manual

Service

Tfswjdf

LOCATION OF PCB BOARDS

STANDBY PCB

CONTROL PCB

MP3 PCB

USB PCB

POWER PCB

MAIN PCB

Type/Versions

Features & Board in used

HTS3355

/55

Main (Output Power-600W)

Composite Video Out

Power Voltage (120/230V)

AC Cord (Fix)

1 - 2

VERSION VARIATION:

Speci cations

1 - 3

AMPLIFIER

Total output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 W RMS

Frequency Response ...... ......... ......... . 150 Hz – 18 kHz / ±3 dB

Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 60 dB (A-weighted)

Input Sensitivity

- AUX In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mV

- TV In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mV

- MP3 Line-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mV

RADIO

Tuning Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 87.5–108 MHz (50kHz)

......................................................... MW 531–1602 kHz (9kHz)

26 dB Quieting Sensitivity . . . . . . . . . . . . . . . . FM 22 dBf, MW 5000µV/m

IF Rejection Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 60 dB, MW 24 dB

Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 50 dB, MW 30 dB

AM Suppression Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 30 dB

Harmonic Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM Mono 3%

............................................................................ FM Stereo 3%

.......................................................................................MW 5%

Frequency Response ...... ......... ...... FM 180 Hz–10 kHz / ±6 dB

Stereo Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 26 dB (1 kHz)

Stereo Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM 23.5 dB

DISC

Laser Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Semiconductor

Disc Diametre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12cm / 8cm

Video Decoding . .. . .. .. .. . MPEG-1 / MPEG-2 / DivX 3/4/5/6, Ultra

Video DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Bits

Signal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAL / NTSC

Video Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4:3 / 16:9

Video S/N .... ....... ................... ....... ............ ...... 56 dB (minimum)

Audio DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Bits / 96 kHz

Composite Video Output ...... ......... ......... ......... .... 1.0 Vp-p, 75Ω

S-Video Output . . . . . . . . . . . . . . Y - 1.0 Vp-p, 75Ω C - 0.286 Vp-p, 75Ω

Frequency Response ...... ......... ......... .. 4 Hz–20 kHz (44.1 kHz)

................................................................ 4 Hz–22 kHz (48 kHz)

................................................................ 4 Hz–44 kHz (96 kHz)

PCM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IEC 60958

Dolby Digital ...... ......... ......... ......... ......... IEC 60958, IEC 61937

DTS .... ....... ............ ....... ....... ............ ...... IEC 60958, IEC 61937

REAR SPEAKERS

System . . . . . . . . . . . . . . ............................................ Full range satellite

Impedance . . . . . . . . . . . . . . ..............................................................3 Ω

Speaker drivers ...... ...................................3” full range speaker

Frequency response . . . . . . . . . . . . . . .......................... 120 Hz – 20 kHz

Dimensions . . . . . . . . . . . . . . ............ 95 x 1184 x 73.7 (mm) (w x h x d)

Weight .... ....... ........................................................5.99 kg/each

CENTRE SPEAKER

System . . . . . . . . . . . . . . ...................................................2-way satellite

Impedance . . . . . . . . . . . . . . ..............................................................6 Ω

Speaker drivers ...... ....... 2 x 2.5” full range speaker+ 2” tweeter

Frequency response . . . . . . . . . . . . . . .......................... 120 Hz – 20 kHz

Dimensions . . . . . . . . . . . . . . ............... 435 x 93.5 x 67 (mm) (w x h x d)

Weight .... ....... .................................................................1.34 kg

SUBWOOFER

Impedance . . . . . . . . . . . . . . ..............................................................6 Ω

Speaker drivers ...... .................................... 203 mm (8”) woofer

Frequency response . . . . . . . . . . . . . . ............................40 Hz – 120 Hz

Dimensions . . . . . . . . . . . . . . ........ 159.5 x 355.5 x 370 (mm) (w x h x d)

Weight .... ....... .................................................................4.75 kg

Speci cations subject to change without prior notice.

MAIN UNIT

Power Supply Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220~240 V; 50 Hz

Power Consumption . .. .. .. ... .. ... .. .. .. ... .. .. .. ... .. .. .. ... .. ... .. .. .. ... 100 W

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 340.4 x 48.5 x 435 (mm) (w x h x d)

Weight .... ....... ................... ....... ............ ....... ................... .4.04 kg

FRONT AND REAR SPEAKERS

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full range

Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Ω

Speaker drivers ...... ......... ......... ......... ........3” full range speaker

Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Hz – 20 kHz

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 95.6 x 198.3 x 75 (mm) (w x h x d)

Weight .... ....... ................... ....... ............ ....... ........... 0.62 kg/each

Service Tools:

Universal Torx driver holder .................................4822 395 91019

Torx bit T10 150mm ...........................................4822 395 50456

Torx driver set T6-T20 .........................................4822 395 50145

Torx driver T10 extended .....................................4822 395 50423

Compact Disc:

SBC426/426A Test disc 5 + 5A ...........................4822 397 30096

SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155

SBC429 Audio Signals disc .................................4822 397 30184

Dolby Pro-logic Test Disc ....................................4822 395 10216

SERVICE AIDS

HANDLING CHIP COMPONENTS

1 - 4

1 - 5

WAARSCHUWING

Alle IC’s en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen verminderen. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal.

AVVERTIMENTO

Tutti IC e parecchi semi-conduttori sono sensibili alle scariche statiche (ESD). La loro longevità potrebbe essere fortemente ridatta in caso di non osservazione della più grande cauzione alla loro manipolazione. Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dell’apparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale.

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used.

Safety components are marked by the symbol

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast.

De Veiligheidsonderdelen zijn aangeduid met het symbol

Les normes de sécurité exigent que l’appareil soit remis à l’état d’origine et que soient utiliséés les piéces de rechange identiques à celles spécifiées.

Less composants de sécurité sont marqués

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Original zustand des Geräts darf nicht verändert werden; für Reparaturen sind Original-Ersatzteile zu verwenden.

Sicherheitsbauteile sind durch das Symbol

markiert.

Le norme di sicurezza esigono che l’apparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati.

Componenty di sicurezza sono marcati con

After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist, The leakage current must not exceed 0.5mA.

CLASS 1

LASER PRODUCT

3122 110 03420

Warning !

Invisible laser radiation when open. Avoid direct exposure to beam.

Varning !

Osynlig laserstrålning när apparaten är öppnad och spärren är urkopplad. Betrakta ej strålen.

Varoitus !

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina näkymättömälle laserisäteilylle. Älä katso säteeseen!

WARNING

All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance. Keep components and tools also at this potential.

ATTENTION

Tous les IC et beaucoup d’autres semi-conducteurs sont sensibles aux décharges statiques (ESD). Leur longévité pourrait être considérablement écourtée par le fait qu’aucune précaution n’est prise à leur manipulation. Lors de réparations, s’assurer de bien être relié au même potentiel que la masse de l’appareil et enfiler le bracelet serti d’une résistance de sécurité. Veiller à ce que les composants ainsi que les outils que l’on utilise soient également à ce potentiel.

ESD

WARNUNG

Alle ICs und viele andere Halbleiter sind empfindlich gegenüber elektrostatischen Entladungen (ESD). Unsorgfältige Behandlung im Reparaturfall kan die Lebensdauer drastisch reduzieren. Veranlassen Sie, dass Sie im Reparaturfall über ein Pulsarmband mit Widerstand verbunden sind mit dem gleichen Potential wie die Masse des Gerätes. Bauteile und Hilfsmittel auch auf dieses gleiche Potential halten.

Advarse !

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er ude af funktion. Undgå udsaettelse for stråling.

"Pour votre sécurité, ces documents doivent être utilisés par des spécialistes agréés, seuls habilités à réparer votre appareil en panne".

ESD PROTECTION EQUIPMENT

Complete Kit ESD3 (small tablemat, wristband,

connection box, estention cable and earth cable ....... 4822 310 10671

Wristband tester ................................................................. 4822 344 13999

1 - 6

Pb(Lead) Free Solder

When soldering , be sure to use the pb free solder.

INDENTIFICATION:

Regardless of special logo (not always indicated)

one must treat all sets from 1 Jan 2005onwards, according next rules:

Important note: In fact also products of year 2004 must be treated in this way as long as you avoid mixing solderalloys (leaded/ lead-free). So best to always use SAC305 and the higher temperatures belong to this.

Due to lead-free technology some rules have to be respected by the workshop during a repair:

• Use only lead-free solder alloy Philips SAC305 with

order code 0622 149 00106. If lead-free solder-paste is required, please contact the manufacturer of your solder-equipment. In general use of solder-paste within workshops should be avoided because paste is not easy to store and to handle.

• Use only adequate solder tools applicable for lead-

free solder alloy. The solder tool must be able – To reach at least a solder-temperature of 400?C, – To stabilize the adjusted temperature at the solder-

tip

– To exchange solder-tips for different applications.

• Adjust your solder tool so that a temperature around

360?C – 380?C is reached and stabilized at the solder joint. Heating-time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400?C otherwise wear-out of tips will rise drastically and flux-fluid will be destroyed. To avoid wear-out of tips switch off unused equipment, or reduce heat.

• Mix of lead-free solder alloy / parts with leaded solder

alloy / parts is possible but PHILIPS recommends strongly to avoid mixed solder alloy types (leaded and lead-free). If one cannot avoid or does not know whether product is lead-free, clean carefully the solder-joint from old solder alloy and re-solder with new solder alloy (SAC305).

• Use only original spare-parts listed in the Service-

Manuals. Not listed standard-material (commodities) has to be purchased at external companies.

• Special information for BGA-ICs: – Always use the 12nc-recognizable soldering

temperature profile of the specific BGA (for desoldering always use the lead-free temperature profile, in case of doubt)

– Lead free BGA-ICs will be delivered in so-called ‘dry-

packaging’ (sealed pack including a silica gel pack) to protect the IC against moisture. After opening,

dependent of MSL-level seen on indicator-label in the bag, the BGA-IC possibly still has to be baked dry. (MSL=Moisture Sensitivity Level). This will be communicated via AYS-website. Do not re-use BGAs at all.

• For sets produced before 1.1.2005 (except products

of 2004), containing leaded solder-alloy and components, all needed spare-parts will be available till the end of the service-period. For repair of such sets nothing changes.

• On our website www.atyourservice.ce.Philips.com

you find more information to:

• BGA-de-/soldering (+ baking instructions)

• Heating-profiles of BGAs and other ICs used in Philips-sets

You will find this and more technical information within the “magazine”, chapter “workshop news”.

For additional questions please contact your local repair-helpdesk.

2 - 1 2 - 1

REPAIR INSTRUCTION (Part One)

MA IN UNIT REPAIR CHART 1/ 3

A ll function

No workin g

Check all sy stem

a ll cable is l oos e

or bad IN T

Pa nel stanby LE D sh ow work in g or No t

Re -i nsert and fi x

the cabl e

Check back power

F 901 bad cause da ma ge

Change F 901

Check CN905 2pin

BK 5V if righ t

Check repair control PC B Standb y circui t

Check +5V power

supply circui t

Check RB 901 1pin

+5 V= 5V

Check repair switch

po wer ci rcuit ( See B)

Check all Voltage

3.3V and 1.8V give circuit

V CC=5V

VD 33= 3.3V

VD 18= 1.8V

Check IC208 Pin234 OS C

frequenc y 27M Hz

Repair ma in pcb betw een

IC 202 IC 206 IC 208and IC 602

circui t

YE S

BA D

YE S

WORK

CHECK

CORRECT

YE S

Power Supply

No workin g

A ll Vo lta ge

No Ou tput

Check F 901

Ba d Cause Damage

Check BK 5V +5V

Wo rking or No t

YE S

+ 35.5V Voltage

No Ou tput

Check Repair IC 901 IC 902

A nd It s co nn circui t

- 27V Voltage No Ou tput

+ 12V Voltage

No Ou tput

+5 V Vo lta ge

No Ou tput

Check Q901 Q909 IC 901

A nd It s Co nj oi nt Part

Check Q912 IC 902

A nd It s Co nj oi nt Part

Check Q912 IC 902

A nd It s Co nj oi nt Part

Check Q912 IC 902

A nd It s Co nj oi nt Part

A ll Functio n

No S ound

Check PO WE R IC

Vo lta ge + 35.5V

Ye s

See Contents B

CheckQ306 D304 ZD303

A nd It s co nn part s

Ye s

Check Q305 C

Vo lta ge 3.3V

A ll F unctio n

No Wo rkin g

Po wer Su

pply

No Wo rkin g

A ll F unctio n

No So und

Ip od inpu t No So und

A udi o line IN

No Ou tput

Wi reless

No Ou tput

DVD A udi o

No So und

MP 3 In

No So und

CO AX IA L In

No So und

T uner No So und M No Sv ideo Output O HD MI No Ou tput

BK 5V Voltage

No Ou tput

Check Q912 IC 902

A nd It s Co nj oi nt Part

CheckQ501 Q502 IC 505

A nd It s co nn part s

LO W

CheckQ902 ZD905 IC 505

A nd It s co nn part s

Check Q902 C

Vo lta ge 3.3V

Check IC 505 51P IN

HIGH( 3.3V ) OR LO W( 0V )

Check IC 501 IC 502 IC 503 IC 504

A nd It s Co nj oi nt Part

No CVBS Ou tput Q No Y Pr Pb ou tput

MA IN UNIT REPAIR CHART 2/ 3

Ipod inpu t

No S ound

Check DOC K TO

HT S 3540 Cable IN T

Check ipod input pc b

JK 101CN 101 IN T OR NO

Change this Cable

Change this TW O

Check CN101 JK 101

Check DOC K

IN T

Check CN101 5P IN

Vo lta ge Correct is 5.0V

AUX/TV IN

No Output

Check JK 302

Check IC 304 IC 305 Pin7

IN T or No

approx -5.6V Pin16 approx +5.6 V

Check ZD301ZD302

Check FB 307 FB 308

Change this JK

Check IC 306

A nd It s Co nj oi nt part s

Check IC 306 Pin1 Pin3 6 13

Vo lta ge Correct is 5.0V

Ye s

IN T

Wi reless

No Output

OK or No

Check JK 401 IC 505

A nd Its conjoint part s

Check JK 401

Pin1 approx +5 V

See B

DVD Audi o

No S ound

Check CN801 to

DVD loader Cable Loos e

Check Open/Close

Wo rking or No t

Check CN802 CN803

Check IC 801

A nd It s co nj oi nt part s

Re -In sert and fi x

the cabl e

YE S

De term ine Picture Ou tput

Check IC 208 An d

Th eir Conjoint Pa rt s

Check Q801 Q802 Q803

C OAXIAL In

No S ound

IN T

Check JK 702 Pin5

INT OR NO

RE PA IR ok

Check A nd Repair

FB 202 FB 203

Check IC 201 IC 208 A nd

Check IC 201 Pin6 pin 23

approx +5.0V

See C

Check JK 302

Check IC 304 IC 305 Pin7

IN T or No

approx -5.6V Pin16 approx +5.6 V

Check ZD301ZD302

Check FB 307 FB 308

Change this JK

Check IC 306

A nd It s Co nj oi nt part s

Check IC 306 Pin1 Pin3 6 13

Vo lta ge Correct is 5.0V

Ye s

IN T

See C

or NO

Ye s or No

to DVD Lo ader Cable loos e

or Ba d IN T

Ye s

Ye s or No

Q804 A nd Th eir Conjoint Pa rt s

It s Co nj oi nt Part s

Ye s or No

A nd It s Co nj oi nt part s

FB 309 Q 904

Ye s or No

FB 309 Q 904

REPAIR INSTRUCTION (Part Two)

2 - 2 2 - 2

REPAIR INSTRUCTION (Part Three)

MA IN UNIT REPAIR CHART 3/3

Tuner No Sound

Output

Check CN301 Pin9= +9V

Check CN301 Q901ZD904

And Its Conjoint Parts

Check SW Power

See B

Yes

Check CN1 to CN301

Cable Loose or IN T

Check CN1 Pin2/Clock

Pin3/Data,Pin4/CE

Affirm Correct

Yes

Check IC102 IC108

And Its Conjoint Part s

Check IC1 And

Its Conjoint Parts

Check VT Valtage

Low Freq=0.8--1.8V

Hi Freq=8.0--9.0V

Check IC1 OSC Input

Pin5---AM OSC

VT No Change

Pin3---FM OSC

Repair FM osc Section

And Its Conjoint Part s

No AMNo FM

L6 or DT4

Repair AM osc Section

And Its Conjoint Part s

L12 or DT5

Check Repair CN302 IC301

And Its Conjoint Part s

Check CN1 L12 CF3

And Its Conjoint Parts

Check CN302 IC301

And Its Conjoint Parts

Check CF2 And

Its Conjoint Parts

L6 DT4

And Its Conjoint Part s

AM Function No Sound

FM Function No Sound

Check IC1 X1 C39

And Its Conjount Parts

Check Main Pcb Of Tuner Input Circuit

No Svideo output

Check JK701 Pin1 Pin3

Video signal

Yes

Check IC208 PIN133 PIN140

To JK701 Conjoint Parts

HDMI No Output

Yes

Insert And Pull out HDMI

cable

See C

CheckQ610 Q611 Q609

And Conjoint Parts

Check IC602 3.3V And 1.8V

Check Q203 Q204

And Conjoint Parts

Check C300

CheckC300

And Conjoint Parts

Check IC602 PIN72:ASPDIF

Check IC602 IC208

And Conjoint Part s

PIN77:ALCK

No CVBS output

Check JK701 Pin5

Video signal

Yes

Check IC208 PIN134

To JK701 Conjoint Parts

No Y Pr Pb output

Check JK702 Pin12 Pin4

Pin5 Video signal

Yes

Check IC208 PIN137 PIN138

pin139 To JK702 Conjoint Parts

2 - 3 2 - 3

3 - 1 3 - 1

DISASSEMBLY INSTRUCTIONS

Dismantling of the Front Panel Assembly

1) Open the DVD Tray by using the Open/Close Button while the Set is ON and disconnect the mains supply after removing the Tray Cover.

Note: If this is not possible, the DVD Tray

has to be open manually.

Take a mini screw driver about 2mm diameter and make a

marking 24mm from the tip as shown in  gure 2 . Place the set on its side, insert the mini screw driver till the marking and slide it towards the right as shown in  gure 1 until the Tray moves out of the Front Panel.

2) Return the set to its upright position and remove the Tray Cover as shown in Figure 3 and close the tray manually by pushing it back in.

3) Loosen 5 screws and remove the Top Cover by lifting the rear portion upwards before sliding it out towards the rear.

- 3 screws on the back

- 1 screws each on the left & right side

4) Loosen 5 screws & lift up the top edge of Front Panel assembly to free some catches before sliding it out towards the front.

- 3 screws on the bottom

- 1 screw each on the left & right side

24mm

mm2

Figure 3

Figure 2

Dismantling of the Main PCB

2) Loosen 3 screw “ A “ on the top of main board as shown in  g ure 4.

1) Loosen 6 screw “B” at the back panel as shown in  gure 5.

Figure 4

Figure 5

PULL

Figure 1

+ 22 hidden pages